1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3290a1fcdc5f0136a5cfc4bc1bdaa981acfd0d1baa8b13097f85642354e3a8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9420b0c-ea5b-4df4-9fe5-87ab2d127974.json and https://artists.proofprofile.net/proofs/artist/f9420b0c-ea5b-4df4-9fe5-87ab2d127974.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4504a902697ca4b122e1a31a20d2483d8525020e8e76802f3cd8e9c059865c59. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8LD1714015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f5330e8b5672fffe955b902f480aa7634973f94d7a825d832e80b06ff27232. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:54:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9JZ1709788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6ea758919241338ec4536d016efde1d9f7942e4d732d29f2cafe99191fac73. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4DW1810639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc684b9f875a6ce0b6cb3f697e736e27e7a39a25f7211ceafd9346e18643bf8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES71971373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df23bc7d14c12da26a7e04ace169f9c05b3f27b35612031ceebea9003132a0a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN81923807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d7ea26eca32e00aaf7bdb2c1751679c01b14719c5733e2ddfd7ac53ee0e53f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72051685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb235864d795aacf99753c81e4ef6c882a2094c669dc881e03ce6a78fe7d7a3de. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2026066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b8486f50d87c2bec882d6f5f12293ad5bb67972ee4b5f0a869824a75f0d3a6. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2026067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb89b855a3b2f65409f1145faa6877bd5d4bd2fefb62e70a5a552cedfb41980. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2079840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e94a87a582f348c0f05a6ece47c31604470d7b99028e30b099ede97eae3444. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T04:53:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2281492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12980d0b194a0dbb2827d2a8f857f32e2856ed26aed9f64fbd7398885761d34. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2257710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05a31e1e1699477c036c6c2745c1a3d1353664a0c3bee251f1fc4d8bd67402d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92376830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e334cba7b761e31b98471c5c57d64598244fec543d20cfbd3e632c0a868486. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEQ2326239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f36599dcbbb696a7327ed5dff4b1a4ec016bb0cdc4a1fb17d82ac2bd6a8d782. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-17T08:55:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52378564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c37e7ac6b49be4145771ec2e65c61e19b64884b940630be593e1e588dd4523. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFH2377935.
Can't Help Falling In Love (Wedding Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec06c6bd7ea1fc402d7bf890a2f7223232c484287df3ad71d9da21bebf3a0b0c. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2455215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65f10da466da985d92dab7c4e1bccce8f824364790d8daaefcb0b7c4951f281. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32568256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838890e36d002164c143cc1f3094f5829a8cca09bd40767ec7aa5fe2984c280e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWZ2584159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141d94f290fce25a46f06d1d3543900f86e22fa10b817e0f0b365817c0e4cfa8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32599346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f730f1f25a08fa7600e7b51e7dc870d9b075c26dec73e8dd9980d2a0ec8207. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFK2572765.